<?php

namespace common\models;
use yii\mongodb\ActiveRecord;
use yii\web\IdentityInterface;
use common\models\Discipline;
use common\models\Lections;
use common\models\Cultusers;
use yii\helpers;
use Yii;




class Programs extends ActiveRecord
{

    public $file;

    public function attributes()
    {

        return ['_id' ,
            'program',
            'icon',
            'subtitle',
            'enddate',


            'about',
            'bibliography',
            'file'

        ];

    }

    public function rules()
    {
        return [
            [['program'], 'required'],
            [[ 'subtitle', 'enddate', 'about', 'bibliography', ],'safe'],
            [['file'], 'file','extensions' => 'gif, jpg, png, jpeg',]
        ];
    }


    public static function findIdentity($id)
    {
        if(!($id instanceof \MongoId)){
            $id = new \MongoId($id);
        }
        return static::findOne(['_id'=>$id]);
    }

    public function getDisciplines()
    {
        $disciolines = Discipline::find()
            ->where(['program' => $this->program])->all();

        return $disciolines;
    }

    public function getLections()
    {
        $lections = Lections::find()->where(['program' => $this->program])->all();
        return $lections;
    }

    public function getLecionsDates()
    {
        $lectionsDates=array();
        foreach($this->getLections() as $value) {
            $lectionsDates[] = $value->begindate;}
        return $lectionsDates;
    }

    public function getBeginDate()
    {

        $beginDate = min($this->getLecionsDates())->sec;
        return $beginDate;
    }

    public function dateToView($sec)
    {
        return date('d-m-Y', $sec);
    }
    public function getLastLecDate()
    {
        $lastLecDate = array_filter($this->getLecionsDates(),
            function($var)
            {
                $now = new \DateTime();
                if($var->sec < $now->getTimestamp()){
                    return true;
                }
            }) ;
        return max($lastLecDate);
    }

    public function getNextLecDate()
    {
        $nextLecDate = array_filter($this->getLecionsDates(),
            function($var)
            {
                $now = new \DateTime();
                if($var->sec > $now->getTimestamp()){
                    return true;
                }
            }) ;
        if($nextLecDate != false) {
            return min($nextLecDate);
        }else{

            return $this->getLastLecDate();
        }
    }

    public function getLastLec()
    {
        $getLastLec = null;
        foreach($this->getLections() as $lection) {
            if($lection->begindate->sec === $this->getLastLecDate()->sec){
                $getLastLec = $lection;
            }
        }
        return $getLastLec;
    }
    public function getNextLec()
    {
        $getLastLec = null;
        foreach($this->getLections() as $lection) {
            if($lection->begindate->sec === $this->getNextLecDate()->sec){
                $getLastLec = $lection;
            }
        }
        return $getLastLec;
    }


    public function getLectors()
    {
        $lections = $this->getLections();
        $lectorIds = array_map(function($lection){
            return $lection->lectorId;
        }, $lections);
        $lectors = Cultusers::find()->where(['role'=>Cultusers::ROLE_LECTOR, '_id' =>  $lectorIds])->all();
        return $lectors;

    }
}